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The Collaborative International Dictionary
Amyloid

Amyloid \Am"y*loid\, Amyloidal \Am`y*loid"al\, a. [L. amylum starch + -oid.] Resembling or containing amyl; starchlike.

Amyloid degeneration (Med.), a diseased condition of various organs of the body, produced by the deposit of an albuminous substance, giving a blue color with iodine and sulphuric acid; -- called also waxy degeneration or lardaceous degeneration.

Amyloid

Amyloid \Am"y*loid\ ([a^]m"[y^]*loid), n.

  1. A non-nitrogenous starchy food; a starchlike substance.

  2. (Med.) The substance deposited in the organs in amyloid degeneration.

Douglas Harper's Etymology Dictionary
amyloid

"starch-like," 1857, coined in German (1839) from Latin amylum (see amyl) + Greek-derived suffix -oid. The noun is attested from 1872.

Wiktionary
amyloid

a. 1 Containing or resembling starch. 2 (context mycology English) Applied to a mushroom that turns blue-black upon application of Melzer's reagent. n. 1 A waxy compound of protein and polysaccharides that is found deposited in tissues in amyloidosis. 2 Any of various starchlike substances.

WordNet
amyloid

adj. resembling starch [syn: starchlike, amylaceous, amyloidal, farinaceous]

amyloid
  1. n. a nonnitrogenous food substance consisting chiefly of starch; any substance resembling starch

  2. (pathology) a waxy translucent complex protein resembling starch that results from degeneration of tissue

Wikipedia
Amyloid

Amyloids are aggregates of proteins that become folded into the wrong shape, allowing many copies of that protein to stick together. These previously healthy proteins most often lose their normal function and form large fibrils. These fibrils disrupt the healthy physiological function of nearby tissues and organs.

Amyloids have been known to arise from at least 18 different proteins and polypeptides, and have been associated with more than 20 human diseases, known as amyloidosis, and may play a role in some neurodegenerative disorders.

Amyloid (mycology)

In mycology a tissue or feature is said to be amyloid if it has a positive amyloid reaction when subjected to a crude chemical test using iodine in either Melzer's reagent or Lugol's solution, producing a black to blue-black staining. The term "amyloid", meaning "starch-like", refers to the fact that starch gives a similar reaction, also called an amyloid reaction. The test can either be on microscopic features, such as spore walls or hyphal walls, or the apical apparatus on an ascus, or be a macroscopic reaction on tissue where a drop of the reagent is applied. Negative reactions, called inamyloid or nonamyloid reactions are for structures that remain pale brown or clear. A reaction producing a deep reddish to reddish brown staining is termed either a pseudoamyloid reaction or a dextrinoid reaction.

Amyloid (disambiguation)

An amyloid is any of certain insoluble fibrous protein aggregates.

Amyloid may also refer to:

  • Amyloid (mycology), a chemical reaction used in characterization of fungi
  • Amyloid (journal), the Amyloid: the Journal of Protein Folding Disorders peer-reviewed scientific journal
Amyloid (journal)

Amyloid: the Journal of Protein Folding Disorders is a peer-reviewed scientific journal that publishes original research and review articles on all aspects of the protein groups and associated disorders that are classified as amyloidoses as well as other disorders associated with abnormal protein folding. The Journal has a major focus on etiology, pathogenesis, histopathology, chemical structure and the nature of fibrillogenesis and also publishes papers on the genetic aspects (both basic and clinical) of many of these disorders. It is the official journal of the International Society of Amyloidosis. The Journal was established in 1994 as "AMYLOID: The International Journal of Experimental & Clinical Investigation" until the change of name in 2004. Impact factor in 2012 was 4.436. Dr. Alan Cohen was the Founding Editor and from 1994 until 2010 the first Editor-in-Chief of Amyloid: The Journal of Protein Folding Disorders. The present editor in chief is Per Westermark (Uppsala University, Sweden).

Usage examples of "amyloid".

Cannibalistic behavior predates by decades the appearance of all disease symptoms, and by inference, the appearance of amyloid plaque lesions in the brain tissue.

The cells represented in division B are amyloid concretions, found where there is an enlarged prostate gland.

One of them even showed me his lab, where they were doing all kinds of chemical experiments on the amyloid beta protein and a number of other things.

Its power of supporting life and maintaining the weight and composition of the body remains unaltered, whether it contains fats or amyloids or not.

From what has been said, it will readily be seen that whether an animal be carnivorous or herbivorous, it begins to starve as soon as its vital food-stuffs consist only of amyloids, or fats, or both.

The universal practice of subsisting on a mixed diet, in which proteids are mixed with fats or amyloids, is therefore justifiable.

Anyhow, no more amyloids in the perivascular spaces— if that makes any sense to you—the old liver and spleen are back to normal size and I can feel that.

Anyhow, no more amyloids in the peri vascular spacesif that makes any sense to youthe old liver and spleen are back to normal size and I can feel that.